31 July 2023 to 4 August 2023
America/Chicago timezone

Investigations of nucleon-pion states

2 Aug 2023, 09:20
20m
Curia II (WH2SW)

Curia II

WH2SW

Speaker

Andreas Hackl (University of Regenburg)

Description

We present an analysis of the $N \pi$ contribution to the determination of the nucleon mass spectrum using constrained fits. Our study involves simultaneous fitting of $N \to N$ and $N \to N \pi$ correlation functions. The analysis is performed on a $24^3 \times 48 \times 24$ lattice with $2 + 1$ dynamical Domain-Wall fermions. We employ a lattice spacing of $a^{-1} = 1.74 \text{ GeV}$ and a pion mass of $m_{\pi} = 279 \text{ MeV}$. Further, we will discuss our preliminary results for the computation of the nucleon axial charge.

Topical area Structure of Hadrons and Nuclei

Primary author

Andreas Hackl (University of Regenburg)

Co-author

Presentation materials